Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 750R899H01 found under Cover Antenna Base by Ridge Engineeringinc. The National Stock Number assigned to this part is 5985015207424, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 750R899H01.